Total Complaints
2 filings
MERCEDES-BENZ E300 · model year
2009 MERCEDES-BENZ E300
2 NHTSA complaints for this specific cohort.
NHTSA overall rating
Not crash-tested
New Car Assessment Program
The 2009MERCEDES-BENZE300 carries 2 consumer safety complaints in NHTSA's Office of Defects Investigation database for this specific model-year cohort. Within that volume, owners reported 0 crashes, 1 fire, 0 injuries, and 0 fatalities. No NCAP 5-star crash-test rating is available for this model year in the federal database.
Component-level analysis is where model-year complaints become actionable: the top complaint category for the 2009 E300 is suspension with 1 filings, followed by electrical system (1). Concentration in one or two component groups is the classic signature of a systemic defect; a flat distribution usually reflects normal aging, warranty complaints, or isolated build-plant variability.
NHTSA currently has 15 investigation files overlapping the 2009 E300. Owners comparing this cohort against neighboring years should pair the counters above with the complaint-by-year trend on the parent model page — a spike in a single year often tracks to a platform refresh, a new transmission supplier, or an updated ECU calibration. Use the related-complaint feed below to read raw owner narratives before deciding whether any pattern here affects your specific use case.
2
Complaints
0
Crashes
1
Fires
0
Injuries
0
Deaths
Crashes Reported
0 reports
Source
NHTSA ODI
Federal complaints database
Complaints vs. fleet median (215)
At or below the fleet median complaint volume.
Complaints by Component
| Component | Count |
|---|---|
| SUSPENSION | 1 |
| ELECTRICAL SYSTEM | 1 |
Recent Complaints
20120321FireELECTRICAL SYSTEM
TL* THE CONTACT OWNS A 2009 MERCEDES BENZ E300. WHILE PARKED, THE BRAKE WARNING LIGHT ILLUMINATED ON THE INSTRUMENT PANEL. THE CONTACT INSPECTED THE VEHICLE AND NOTICED THAT THE WIRING HARNESS WAS OVERHEATING ON THE PASSENGER SIDE, CAUSING THE CIRCUIT BOARD AND WIRES TO MELT. THE DRIVER SIDE HAD A BLACK HOLE DEVELOPING IN THE CIRCUIT BOARD. THE VEHICLE WAS TAKEN TO THE DEALER FOR DIAGNOSTICS. THE TECHNICIAN STATED THAT THE WIRING HARNESS AND CIRCUIT BOARD WOULD HAVE TO BE REPLACED. THE VEHICLE WAS NOT REPAIRED. THE VIN WAS NOT AVAILABLE. THE APPROXIMATE FAILURE MILEAGE WAS 40,000.
Mileage: 40,000
20110110SUSPENSION
HAD A SPRING PERCH FAILURE ON THE FRONT LEFT SIDE WHILE I WAS REVERSING OUT OF MY DRIVEWAY IN THE MORNING. THE SPRING FELL ON THE GROUND AND THE BODY OF THE CAR RESTED ON THE WHEEL. MY LOCAL MECHANIC DIAGNOSED THE ROOT CAUSE AS RUST WHERE THE PERCH ATTACHES TO THE FRAME.
Mileage: 194,560
Compare 2009MERCEDES-BENZE300 to Similar Vehicles
NHTSA Investigations
Frequently Asked Questions
How many complaints does the 2009 MERCEDES-BENZ E300 have?▼
The 2009 MERCEDES-BENZ E300 has 2 NHTSA complaints, 0 crashes, 1 fires, 0 injuries, and 0 deaths reported.
What are the most common problems with the 2009 MERCEDES-BENZ E300?▼
The most-complained component for the 2009 MERCEDES-BENZ E300 is SUSPENSION with 1 complaints. Other frequently reported areas include ELECTRICAL SYSTEM.
Is the 2009 MERCEDES-BENZ E300 safe to buy?▼
Review the complaint history, crash and fire reports, safety ratings, and recall status on this page to make an informed decision. No NHTSA crash test rating is available for this model year. Compare with other model years using the links above.
Where does this data come from?▼
All complaint, recall, and safety rating data is sourced from the National Highway Traffic Safety Administration (NHTSA). Complaints are filed by vehicle owners through NHTSA's Office of Defects Investigation.
Vehicle Safety Guides
Data as of 2025. Sources: NHTSA Office of Defects Investigation (ODI) complaints database, NHTSA recall campaign API, NHTSA NCAP crash-test ratings, and NHTSA FARS for fatality cross-reference.
Read our methodology — how this data is sourced, computed, and verified.